Harrow.



No. 813,852. PATENTED PEB. 27, 1906.

W. H. BOND HARROW.

APPLIOATION FILED 00T. 12, 1905.

f//fllH WILLIAM H. BOND, OF NEWCASTLE, INDIANA.

HARROW.

Specification of Letters Patent.

Patented Feb. 2'7, 1906.

Application filed OGtObBI' l2, 1905- Serial No. 282,488.

To all whom t may concern:

Be it known that I, WILLIAM H. BOND, a citizen of the United States, and a resident of Newcastle, in the county of Henry and State of Indiana, have invented a new and Improved Harrow, of which the following is a full, clear, and exact description.

The purpose of the invention is to provide a double revolving harrow which also acts as a leveler so constructed that the ground over which it passes is harrowed both ways at one operation, and, further, to provide the harrow with a spring-controlled colter at the rear.

Another purpose of the invention is to so pitch the harrow-teeth that they will wear evenly and so that as the implement is drawn forward the harrows revolve in opposite directions, and as the harrows are placed side by side and the teeth of the two harrows are inclined in opposite directions all of the ground passed over is eectually broken, stirred up, and leveled.

The invention consists in the novel construction and combination of the several parts, as will be hereinafter 'fully set forth,

and pointed out in the claim.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar characters of reference indicate corresponding parts in all the figures.

Figure 1 is a plan view of the improved harrow. Fig. 2 is a longitudinal section taken practically on the line 2 2 of Fig. 1, and Fig` 3 is a longitudinal section taken practically on the line 3 3 of Fig. 1.

The frame A of the harrow is substantially A-shaped, comprising two vside members 10 at angles to each other and a connecting member 11. .A beam 12 is carried rearward from the central portion of the connecting member 11 of the frame, and in the rear end of this beam a longitudinal slot 13 is made. The standard 14 of a disk colter 15 passes up through the said slot 13, being pivoted therein by a suitable pin 16, and a spring 17 is secured to the upper end of the colterstandard and to the upper portion of the beam 12, so that the colter while always heldin position for action will accommodate itself to different characters of ground.

A clevis 18 is located at the forward central portion of the frame A, and at the rear end portion of each side beam 10 of the said frame an upwardly-extending sleeve-bearing p 19 is secured, as best shown in Fig. 2. A spindle 2.0 is mounted to turn in each bearing 19,

and said spindles extend above and below their bearings, being attached at their upper ends to collars 21 and being provided at their lower ends with heads 22. A disk 23 is secured to or is carried by each spindle 20 at its head portion, as is particularly shown in Fig. 2, and a series of arms 24, usually six in number, are'secured to and made to radiate from each of the said disks 23. These arms 24 may be madealtogether of metal or altogether of wood; but usually the arms are provided with a body a, of wood, and a channeled cap-section a', of metal, and bolts 25 are usually employed to secure the inner ends of the said arms to the said disks.

The arms 24, connected with each disk, constitute the body portion or frame of a revolving harrow, and these harrows are designated as B and B', and as they are located at the rear ends of the limbs 10 of the frame A they are opposite each other, but are a suHicient distance apart to enable them both to operate without interference one with the other.

Each arm is provided with a series of teeth 26. These teeth are arranged in series adj acent to what may be termed the outer side edges of the arms and are in longitudinal series. The teeth 26 of the arms are given a decided downward inclination, being diagonally placed, the teeth on each harrow having the same degree of inclination; but the teeth on the harrow B are inclined in an opposite direction to the inclination of the teeth of the opposing harrow B', so that as the implement is drawn forward the harrows revolve in opposite directions, and vthe teeth on the arms of a harrow track across the teeth of opposing arms on the same harrow, as is indicated in Fig. 3, thus effectually stirring up almost every portion of the ground, and as the two harrows revolve in opposite directions the ground is practically gone over both ways when the harrow has been drawn once over the field. l

The harrows B and B turning in opposite directions cause the implement to pull straight, and preferably the said teeth are tapering, being pointed at their lower ends and of any desired thickness at their upper ends, which latter extend, preferably, above the upper face ofthe said harrow-arms.

Having thus described my invention, I claim as new and desire to secure byLetters Patent- In an agricultural implement, the combi- IOO IIO

nation with an A-lrame and spindles mounttwo harrowsy and a eolter the shank of which ed to revolve in the rear end portions of the l is pivotally mounted in the said arm. limbs of the said frame, 0i' harrows each eom- 1 In testimony whereof I have signed my prising abody attached to one ol the spindles, name to this specification in the presence of 5 arms raldially :ttaehed tlo tie sail1 bnly and two subscribing witnesses. l

teeth t iagona y asse( t roug t e sai( arms, the inelinatign of the teeth of one liar- WILLIAM H' BOND row being opposite to the inclination of the Witnesses: teeth ofthe opposing harrow, an arm extend- L. M. ANDERSON,

1o ing rearwardly from the frame between the 1 EPHRAIM W. CHEW. 

